In assessing stock market volatility, how do you interpret different ranges of the sum of the ARCH and GARCH Coefficients?

More Sk. Riad Arefin's questions See All

What's wrong with my COMSOL model for turbulent flow in time dependent solver?

I am trying to simulate velocity field inside a domain of just ambient air (pressure is 1 atm & velocity is 10 m/s). There is a tank inside it which has a leakage. The leakage hole is leaking...

01 July 2024 2,249 0 View

How the CBM and VBM plots are made using VASP?

Hi all, I seen CBM and VBM plots in articles plotted using VASP, i pasted a part of the sample picture. I used to do with Gaussian, but can any one explain How exactly these could be plotted...

28 April 2024 5,155 4 View

The Fermi energy cannot be calculated for a bulk material. is it correct or not?

17 April 2024 6,217 0 View

In an L-fuzzy metric space, what is the topology on the Lattice L?

In an L-fuzzy metric space, what is the topology on the lattice L? We have the sequential definition of continuous T-norm in an L-fuzzy metric space. Without the topology, how can we talk about...

29 March 2024 2,401 0 View

Is there any field guide for identification of plants?

Please suggest how to identify the herbs, shrubs and trees in field

25 March 2024 7,172 6 View

Is there any method to isolate DNA from a clot blood sample preserved in RNA/DNA sheild buffer?

For DNA islolation

13 March 2024 7,635 4 View

Assessing the Impact of Urbanization on Agricultural Land?

Hi, "Assessing the Impact of Urbanization on Agricultural Land" I want to use Remote Sensing and GIS as tools to analyze the conversion of agricultural land to urban areas. Can anyone give...

24 December 2023 9,631 2 View

Can we culture the human PBMC with nanoparticle and do the metabalomics studies?

I want to know, can we culture the human PBMC with nanoparticle and do the metabalomics studies? Please let me know

15 December 2023 548 2 View

What is the difference between the items/statements of an attitude scale and a perception scale?

I want to know how to select the items both of these scales? & how should the items/statements of each scale be formulated or phrased?

02 December 2023 2,190 0 View

What to do to get better antimicrobial property of TiO2 nanoparticles?

I synthesized TiO2 nanoparticles in the green route and got the result of XRD. But I didn't get any antimicrobial properties from it against E. coli and S. aureus. Can you give me any suggestion...

28 November 2023 5,721 2 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Is it possible to use the Fused Deposition Modeling (FDM) to additively manufacture interconnected porous structure generation of >100-200 micrometer?

Usually, additive manufacturing techniques like SEBM, SLS, and SLM are used for interconnected porous lattice structure generation with sizes of >100–200 micrometers. Can the Fused Deposition...

09 August 2024 7,892 0 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View

How can I apply boundary conditions in an orthotropic steel deck numerical model using ABAQUS software?

I am trying to simulate vehicular loading on an orthotopic steel deck bridge section in ABAQUS software. The red arrow mark in the attached figure indicates the direction in which the vehicle will...

08 August 2024 719 0 View

Can you suggest reliable sources defining "3D mesh" and "3D city models"?

Dear fellow researchers, I am currently working on a paper where I need to provide a reliable reference that defines and distinguishes between 3D mesh models and 3D city models. Although I am...

06 August 2024 9,986 2 View

Please explain how the plastic input value should be considered from the true stress-strain curve for the bilinear elastoplastic material model ?

I am working on Abaqus/Explicit(Quasistatic ) for the deformation of the auxetic structure model. Please explain how the plastic input value should be considered from the true stress-strain curve...

05 August 2024 454 3 View

How can major oxides determined by ICP-MS/ES be normalized to 100% volatile free? How does this connect with LOI?

I am analyzing cherts from different sources found within one specific geologic formation using ICP-MS/ES. My committee was asking this question about my analysis. I was not sure how to answer this

05 August 2024 7,902 3 View

What are the shear and normal stiffness values of an LLDPE liner in 3D numerical modeling of a stockpile?

I am seeking experimental or applicable data for the liner (LLDPE) interface in FLAC3D numerical modeling of a large stockpile. Could you please recommend suitable references? The preferred data...

05 August 2024 3,665 0 View

Is it necessary to covary exogenous constructs in a structural model?

I am working on a SEM model where i have 7 latent variables (6 exogenous and 1 endogenous). In AMOS when I co-vary the exogenous constructs, only 2 paths are coming significant out of 6. But when...

03 August 2024 6,028 4 View